#!/usr/bin/node

const user = {
  name: 'lijinjie',
  age:  20,
  qq:   '1805639715'
};

const log = console.log;

log('name: %s',user.name);
log('age: %d',user.age);
log('qq: %j',user.qq);

log('qq: %s',user.qq);
log('qq:',user.qq);
log('qq: '+user.qq);
log('qq: ${user.qq}');
